In a Father-Son-Grandson Combination, Which of the Following Statements Is

In a father-son-grandson combination, which of the following statements is true?

A) Companies that are solely in subsidiary positions must have their realized income computed first in the consolidation process.
B) Father-son-grandson configurations never require consolidation unless one company owns 100% of at least one other member of the combined group.
C) The order of the computation of realized income is not important in the consolidation process.
D) The parent must have its realized income computed first in the consolidation process.
E) None of these.